<template>
  <div class="app-container">
   
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="Plus" @click="handleAdd"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="Delete"
          :disabled="multiple"
          @click="handleDelete"
          >删除</el-button
        >
      </el-col>
      <right-toolbar
        v-model:showSearch="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-loading="loading"
      :data="productList"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column prop="id" label="ID" width="60" />
      <el-table-column label="轮播图" #default="scope" width="200">
        <div style="height: 50px; float: left">
          <img
            v-for="(item, index) in scope.row.sliderUrlList"
            :key="index"
            :src="item"
            width="50"
          />
        </div>
      </el-table-column>
      <el-table-column prop="name" label="商品名称" width="200"/>
      <el-table-column prop="brandName" label="品牌" />
      <el-table-column prop="category1Name" label="一级分类" />
      <el-table-column prop="category2Name" label="二级分类" />
      <el-table-column prop="category3Name" label="三级分类" />
      <el-table-column prop="unitName" label="单位" width="50" />
      <el-table-column prop="status" label="状态" #default="scope" width="80">
        {{
          scope.row.status == 0
            ? '未上架'
            : scope.row.status == 1
            ? '上架'
            : '下架'
        }}
      </el-table-column>
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
        width="120"
      >
        <template #default="scope">
          <el-button
            link
            type="primary"
            icon="Delete"
            @click="handleDelete(scope.row)"
            >删除</el-button
          >
          <el-button
            v-if="scope.row.status == 0 || scope.row.status == -1"
            link
            type="primary"
            @click="handleUpdateStatus(scope.row.id, 1)"
            >上架</el-button
          >
          <el-button
            v-if="scope.row.status == 1"
            link
            type="primary"
            plain
            @click="handleUpdateStatus(scope.row.id, -1)"
            >下架</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改商品对话框 -->
    <el-dialog :title="title" v-model="open" width="60%" append-to-body>
      <el-steps :active="activeIndex" finish-status="success">
        <el-step title="Step 1" description="商品基本信息"></el-step>
        <el-step title="Step 2" description="商品SKU信息"></el-step>
        <el-step title="Step 3" description="商品详情信息"></el-step>
      </el-steps>
      <el-form
        ref="productRef"
        :model="form"
        :rules="rules"
        label-width="80px"
        style="margin-top: 20px"
      >
        <el-divider />
        <div v-if="activeIndex == 0">
          <el-form-item label="商品名称" prop="name">
            <el-input v-model="form.name" />
          </el-form-item>
          <el-form-item label="计量单位" prop="unitName">
            <el-select
              v-model="form.unitName"
              class="m-2"
              placeholder="计量单位"
            >
              <el-option
                v-for="item in unitList"
                :key="item.id"
                :label="item.name"
                :value="item.name"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="分类" prop="category3Id">
            <el-cascader
              :props="categoryProps"
              v-model="categoryIdList"
              @change="handleCategoryChange"
            />
          </el-form-item>
          <el-form-item label="品牌" prop="brandId">
            <el-select
              v-model="form.brandId"
              class="m-2"
              placeholder="选择品牌"
            >
              <el-option
                v-for="item in categoryBrandList"
                :key="item.id"
                :label="item.name"
                :value="item.id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="轮播图" prop="sliderUrlList">
            <el-upload
              v-model:file-list="sliderTempUrlList"
              :action="imgUpload.url"
              :headers="imgUpload.headers"
              list-type="picture-card"
              multiple
              :on-success="handleSliderSuccess"
              :on-remove="handleRemove"
            >
              <el-icon>
                <Plus />
              </el-icon>
            </el-upload>
          </el-form-item>
        </div>
        <div v-if="activeIndex == 1">
          <el-form-item label="选择规格">
            <el-select
              :disabled="form.id != null"
              v-model="form.specValue"
              class="m-2"
              placeholder="选择规格"
              size="default"
              @change="handleSpecValueChange"
            >
              <el-option
                v-for="item in specList"
                :key="item.specValue"
                :label="item.specName"
                :value="item.specValue"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="商品SKU">
            <el-table :data="form.productSkuList" border style="width: 100%">
              <el-table-column prop="skuSpec" label="规格" width="180" />
              <el-table-column label="图片" #default="scope" width="80">
                <el-upload
                  class="avatar-uploader"
                  :action="imgUpload.url"
                  :headers="imgUpload.headers"
                  :show-file-list="false"
                  :on-success="
                    (response, uploadFile, fileList) =>
                      handleSkuSuccess(
                        response,
                        uploadFile,
                        fileList,
                        scope.row
                      )
                  "
                >
                  <img
                    style="width: 70px"
                    v-if="scope.row.thumbImg"
                    :src="scope.row.thumbImg"
                    class="avatar"
                  />
                  <el-icon v-else class="avatar-uploader-icon">
                    <Plus />
                  </el-icon>
                </el-upload>
              </el-table-column>
              <el-table-column label="售价" #default="scope">
                <el-input v-model="scope.row.salePrice" />
              </el-table-column>
              <el-table-column label="市场价" #default="scope">
                <el-input v-model="scope.row.marketPrice" />
              </el-table-column>
              <el-table-column label="成本价" #default="scope">
                <el-input v-model="scope.row.costPrice" />
              </el-table-column>
              <el-table-column label="库存数" #default="scope">
                <el-input v-model="scope.row.stockNum" />
              </el-table-column>
              <el-table-column label="重量" #default="scope">
                <el-input v-model="scope.row.weight" />
              </el-table-column>
              <el-table-column label="体积" #default="scope">
                <el-input v-model="scope.row.volume" />
              </el-table-column>
            </el-table>
          </el-form-item>
        </div>
        <div v-if="activeIndex == 2">
          <el-form-item label="详情图片">
            <el-upload
              v-model:file-list="detailsImageTempUrlList"
              :action="imgUpload.url"
              :headers="imgUpload.headers"
              list-type="picture-card"
              multiple
              :on-success="handleDetailsSuccess"
              :on-remove="handleDetailsRemove"
            >
              <el-icon>
                <Plus />
              </el-icon>
            </el-upload>
          </el-form-item>
        </div>
        <div v-if="activeIndex == 3">
          <div style="font-size: large; margin: 30px 30px">提交成功</div>
        </div>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button
            type="danger"
            @click="submitForm(-1)"
            :disabled="activeIndex == 0"
            >上一步</el-button
          >
          <el-button type="primary" @click="submitForm(1)">{{
            activeIndex < 2 ? '下一步' : '提交'
          }}</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Product">
import {
  listProduct,
  getProduct,
  delProduct,
  addProduct,
  updateProduct,
  updateStatus,
  updateAuditStatus,
} from '@/api/product/product'
import { getTreeSelect } from '@/api/product/category'
import { getCategoryBrandAll } from '@/api/product/categoryBrand'
import { getBrandAll } from '@/api/product/brand'
import { getUnitAll } from '@/api/base/productUnit'
import { getCategorySpecAll } from '@/api/product/productSpec'
import { getToken } from '@/utils/auth.js'

const active = ref(0)

const next = () => {
  if (active.value++ > 2) active.value = 0
}

const { proxy } = getCurrentInstance()

const productList = ref([])
const open = ref(false)
const loading = ref(true)
const showSearch = ref(true)
const ids = ref([])
const single = ref(true)
const multiple = ref(true)
const total = ref(0)
const title = ref('')

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: null,
    brandId: null,
    category1Id: null,
    category2Id: null,
    category3Id: null,
    status: null,
    auditStatus: null,
  },
  rules: {
    name: [{ required: true, message: '商品名称不能为空', trigger: 'change' }],
    category3Id: [
      { required: true, message: '商品分类不能为空', trigger: 'change' },
    ],
    brandId: [{ required: true, message: '品牌不能为空', trigger: 'change' }],
    unitName: [
      { required: true, message: '商品单位不能为空', trigger: 'change' },
    ],
    sliderUrlList: [
      { required: true, message: '轮播图不能为空', trigger: 'change' },
    ],
  },
  imgUpload: {
    // 设置上传的请求头部
    headers: {
      Authorization: 'Bearer ' + getToken(),
    },
    // 图片上传的方法地址:
    url: 'http://localhost/dev-api/file/upload',
  },
})

const { queryParams, form, rules, imgUpload } = toRefs(data)


/** 查询商品列表 */
function getList() {
  loading.value = true
  listProduct(queryParams.value).then((response) => {
    productList.value = response.rows
    productList.value.forEach((item) => {
      item.sliderUrlList = item.sliderUrls.split(',')
    })
    total.value = response.total
    loading.value = false
  })
}
getList()

// 取消按钮
function cancel() {
  open.value = false
  reset()
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    name: null,
    brandId: null,
    category1Id: null,
    category2Id: null,
    category3Id: null,
    unitName: null,
    sliderUrls: null,
    specValue: null,
    status: null,
    auditStatus: null,
    auditMessage: null,
    sliderUrlList: [],
    productSkuList: [],
    detailsImageUrlList: [],
  }
  proxy.resetForm('productRef')
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1
  getList()
}

/** 重置按钮操作 */
function resetQuery() {
  queryCategory2List.value = []
  queryCategory3List.value = []
  proxy.resetForm('queryRef')
  queryParams.value.category1Id = null
  queryParams.value.category2Id = null
  queryParams.value.category3Id = null
  queryParams.value.brandId = null
  handleQuery()
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map((item) => item.id)
  single.value = selection.length != 1
  multiple.value = !selection.length
}

//分类搜索
const queryCategory1List = ref([])
const queryCategory2List = ref([])
const queryCategory3List = ref([])
const getTreeSelectList = async (parentId, level) => {
  const { code, data, message } = await getTreeSelect(parentId)
  if (level == 1) {
    queryCategory1List.value = data
  }
  if (level == 2) {
    queryCategory2List.value = data
  }
  if (level == 3) {
    queryCategory3List.value = data
  }
}
const selectcategory1 = () => {
  queryCategory2List.value = []
  queryCategory3List.value = []
  getTreeSelectList(queryParams.value.category1Id, 2)
}
const selectcategory2 = () => {
  queryCategory3List.value = []
  getTreeSelectList(queryParams.value.category2Id, 3)
}

//品牌搜索
const queryBrandList = ref([])
const getBrandAllList = async () => {
  const { data } = await getBrandAll()
  queryBrandList.value = data
}


/** 新增按钮操作 */
function handleAdd() {
  reset()
  open.value = true
  title.value = '添加商品'
  //清空
  activeIndex.value = 0
  sliderTempUrlList.value = []
  categoryIdList.value = []
  detailsImageTempUrlList.value = []

  //加载计量单位
  getUnitAllList()
  

  /*getBrandAllList()
  //加载分类规格
  getCategorySpec() */
}


/** 提交按钮 */
const activeIndex = ref(0)
// function handlePrev() {
//   if (activeIndex.value-- < 0) activeIndex.value = 0
//   console.log(activeIndex.value)
// }
// function handleNext() {
//   if (activeIndex.value++ > 3) activeIndex.value = 3
//   submitForm()
//   console.log(activeIndex.value)
// }
function submitForm(index) {
  proxy.$refs['productRef'].validate((valid) => {
    if (valid) {
      activeIndex.value = activeIndex.value + index

      //轮播图临时地址重新赋值，否则新上传的图片不显示
      sliderTempUrlList.value = []
      form.value.sliderUrlList.forEach((url) => {
        sliderTempUrlList.value.push({ url: url })
      })

      //详情图片临时地址重新赋值，否则新上传的图片不显示
      detailsImageTempUrlList.value = []
      form.value.detailsImageUrlList.forEach((url) => {
        detailsImageTempUrlList.value.push({ url: url })
      })

      if (activeIndex.value == 3) {
        form.value.sliderUrls = form.value.sliderUrlList.join(',')
        if (form.value.id != null) {
          updateProduct(form.value).then((response) => {
            proxy.$modal.msgSuccess('修改成功')
            open.value = false
            getList()
          })
        } else {
          addProduct(form.value).then((response) => {
            proxy.$modal.msgSuccess('新增成功')
            open.value = false
            getList()
          })
        }
      }
    }
  })
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value
  proxy.$modal
    .confirm('是否确认删除商品编号为"' + _ids + '"的数据项？')
    .then(function () {
      return delProduct(_ids)
    })
    .then(() => {
      getList()
      proxy.$modal.msgSuccess('删除成功')
    })
    .catch(() => {})
}

//上下架
function handleUpdateStatus(id, status) {
  const msg =
    status == 1
      ? '是否确认上架商品编号为"' + id + '"的数据项？'
      : '是否确认下架商品编号为"' + id + '"的数据项？'
  proxy.$modal
    .confirm(msg)
    .then(function () {
      return updateStatus(id, status)
    })
    .then(() => {
      getList()
      proxy.$modal.msgSuccess('操作成功')
    })
    .catch(() => {})
}

//三级分类数据加载
//加载分类品牌
const categoryIdList = ref([])
const categoryProps = ref([])
categoryProps.value = {
  lazy: true,
  value: 'id',
  label: 'name',
  leaf: 'leaf',
  async lazyLoad(node, resolve) {
    const { level } = node
    if (typeof node.value == 'undefined') node.value = 0
    console.log('=========' + node.value)
    const { code, data, message } = await getTreeSelect(node.value)
    //hasChildren判断是否有子节点
    data.forEach(function (item) {
      item.leaf = !item.hasChildren
    })
    resolve(data)
  },
}

//处理分类change事件
const handleCategoryChange = () => {
  if (categoryIdList.value.length == 3) {
    form.value.category1Id = categoryIdList.value[0]
    form.value.category2Id = categoryIdList.value[1]
    form.value.category3Id = categoryIdList.value[2]
    getCategoryBrand()
    getCategorySpec()
  }
}
//加载品牌
const categoryBrandList = ref([])
const getCategoryBrand = async () => {
  if (form.value.category3Id == '') {
    proxy.$modal.msgError('请选择分类')
    return
  }
  const { data } = await getCategoryBrandAll(form.value.category3Id)
  categoryBrandList.value = data
}

//加载商品单位
const unitList = ref([])
const getUnitAllList = async () => {
  const { data } = await getUnitAll()
  unitList.value = data
}


// 上传商品轮播图图片
const sliderTempUrlList = ref([])
const handleRemove = (uploadFile, uploadFiles) => {
  console.log(uploadFile, uploadFiles)
  form.value.sliderUrlList.splice(
    form.value.sliderUrlList.indexOf(uploadFile.url),
    1
  )
}
const handleSliderSuccess = (response, uploadFile) => {
  if (response.code == 200) {
    form.value.sliderUrlList.push(response.data.url)
  } else {
    proxy.$modal.msgError(response.msg)
  }
}

//sku图片
const handleSkuSuccess = (response, uploadFile, fileList, row) => {
  console.log(response)
  console.log(uploadFile)
  row.thumbImg = response.data.url
}

//加载商品规格
const specList = ref([])
const getCategorySpec = async () => {
  if (form.value.category3Id == '') {
    proxy.$modal.msgError('请选择分类')
    return
  }
  const { data } = await getCategorySpecAll(form.value.category3Id)
  specList.value = data
}

//规格变化，商品sku变化处理，取规格属性值 笛卡尔积生成sku
const handleSpecValueChange = (val) => {
  form.value.productSkuList = []
  let specValueList = JSON.parse(form.value.specValue)

  // let array = [
  //   ['红色', '黑色', '白色'],
  //   ['16G', '32G'],
  // ]
  let array = []
  specValueList.forEach(function (item) {
    let res = []
    item.valueList.map((x) => {
      //res.push(item.key + ':' + x)
      res.push(x)
    })
    array.push(res)
  })
  //取数组的笛卡尔积
  let result = array.reduce(
    (a, b, c) => {
      let res = []
      a.map((x) => {
        b.map((y) => {
          res.push([...x, y])
        })
      })
      return res
    },
    [[]]
  )
  result.forEach(function (item) {
    form.value.productSkuList.push({
      skuSpec: item.join(' + '),
      skuSpecList: item,
      price: 0,
    })
  })
}

// 上传商品详情图片
const detailsImageTempUrlList = ref([])
const handleDetailsRemove = (uploadFile, uploadFiles) => {
  form.value.detailsImageUrlList.splice(
    form.value.detailsImageUrlList.indexOf(uploadFile.url),
    1
  )
}
const handleDetailsSuccess = (response, uploadFile) => {
  form.value.detailsImageUrlList.push(response.data.url)
}
</script>
<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
  width: 70px;
  height: 70px;
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 50px;
  height: 50px;
  text-align: center;
}
</style>
